The fossilized giant teeth of ground sloths reveal their unique role in the prehistoric ecosystem
A two-toed sloth at the Nashville Zoo. Larisa RG DeSantis Imagine a sloth. You probably imagine a medium-sized, arboreal creature hanging from a branch. Commonly depicted on children’s backpacks, stationery and lunch boxes, today’s sloths are slow-moving creatures that live inconspicuously in the rainforests of Central and South America. But their giant Pleistocene ancestors, who … Read more